Leases Lease Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Finance Lease, Right-of-Use Asset, Amortization	$ 17
Finance Lease, Interest Expense	103
Operating Lease, Cost	3,474
Capital Leases, Income Statement, Amortization Expense		$ 16	$ 0
Capital Leases, Income Statement, Interest Expense		104	0
Operating Leases, Rent Expense, Net		3,310	3,303
Lease, Cost	5,178	4,251	4,320
Below Market Leases [Member]
Property, Plant and Equipment [Line Items]
Variable Lease, Cost	$ 1,584
Amortization		$ 821	$ 1,017